<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<!-- 		响应式布局代码 -->
		<meta name="viewport" content="width=device-width,initial-scale=1,shrink-to-fit=no" />
		
		<!-- jQuery -->
		<script src="js/jquery-3.6.0.min.js" type="text/javascript" charset="utf-8"></script>
		<!-- popper -->
		<script src="js/popper.min.js" type="text/javascript" charset="utf-8"></script>
		<!-- 加载bootstrap css样式 -->
		<link rel="stylesheet" href="css/bootstrap.min.css" />
		<!-- 加载bootstrap js脚本 -->
		<script src="js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
		
	</head>
	<body>
		
		<div>
			
		</div>
		
		<!--
			alert   			提示框样式
			alert-danger 		红色风格
			alert-dismissable 	可以关闭的
			fade 				动画效果
			show 				当前是显示
			
			
			data-dismiss="alert"        事件处理 关闭alert
		-->
		<div class="alert alert-danger alert-dismissible fade show">
			<button type="button" class="close" data-dismiss="alert">&times;</button>
			<strong>警告</strong>具体内容！
		</div>
		
		<div class="alert alert-primary">
			<strong>操作</strong>OK!
		</div>
		
		<div class="alert alert-warning alert-dismissible fade show" role="alert">
		  <strong>Holy guacamole!</strong> You should check in on some of those fields below.
		  <button type="button" class="close" data-dismiss="alert" aria-label="Close">
		    <span aria-hidden="true">&times;</span>
		  </button>
		</div>
	</body>
</html>
